import Vue from 'vue'
import Router from 'vue-router'
import Login from '../components/Login.vue'
Vue.use(Router)

export default new Router({
  routes: [
    { path: '/', redirect: '/login' },
    { path: '/login', component: Login },
    { path: '/home', component: Home }

  ]
})
//挂载路由导航守卫,to表示将要访问的路径，from表示从哪里来，next是下一个要做的操作
router.beforeEach((to, from, next) => {
  if (to.path === '/login')
    return next();

  //获取token
  const tokenStr = window.sessionStorage.getItem('token');

  if (!tokenStr)
    return next('/login');

  next();

})